CN213541211U

CN213541211U - Belt tensioning device for screw air compressor

Info

Publication number: CN213541211U
Application number: CN202022322186.6U
Authority: CN
Inventors: 韩国庆; 吴国蕾
Original assignee: Anhui Hua Jing Machinery Co ltd
Current assignee: Anhui Hua Jing Machinery Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-06-25
Anticipated expiration: 2030-10-19

Abstract

The utility model relates to an air compressor machine technical field specifically is a belt tensioning device for screw air compressor machine, the upside fixedly connected with support arm of mounting panel, and the support arm is hollow structure, is equipped with adjustment mechanism in the support arm, and adjustment mechanism's one end runs through the outside and the fixedly connected with L-shaped piece that extend to the support arm, and adjustment mechanism's one end is kept away from to the L-shaped piece is rotated through first pivot and is connected with the triangular block, and the one end that the L-shaped piece was kept away from to the triangular block is rotated through the second pivot and is connected with the take. The utility model discloses in, drive the take-up pulley displacement through setting up adjustment mechanism and realize the regulation to belt tensile force, convenient operation uses manpower sparingly, and simple structure, low in manufacturing cost, the maintenance of being convenient for sets up elastic mechanism and makes and form elastic connection between take-up pulley and the L-shaped piece, can prevent that the frictional force of take-up pulley pair belt is too big, reduces wearing and tearing, prolongs the life of this device and belt.

Description

Belt tensioning device for screw air compressor

Technical Field

The utility model relates to an air compressor machine technical field specifically is a belt tightener for screw air compressor machine.

Background

The screw type double screw and the air compressor are one kind of air compressor, and there are two kinds of single screw and double screw. Current screw air compressor machine, screw air compressor machine operating time has been of a specified duration, and the belt can become flexible, influences the normal work of air compressor machine, and the maintenance is comparatively troublesome, and it is also high to change the belt cost, has increased use cost, and prior art generally only adopts the take-up pulley to carry out the belt tensioning, and the take-up pulley height can not be adjusted, and the tensioning effect is general, and take-up pulley and belt support the tension force too big, and is serious to belt wearing and tearing, influences the life of belt. Accordingly, one skilled in the art has provided a belt tensioner for a screw air compressor to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a belt tightener for screw air compressor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a belt overspeed device tensioner for screw air compressor machine, includes the mounting panel, the upside fixedly connected with support arm of mounting panel, and the support arm is hollow structure, be equipped with adjustment mechanism in the support arm, and adjustment mechanism's one end runs through the outside and the fixedly connected with L-shaped piece that extend to the support arm, the one end that adjustment mechanism was kept away from to the L-shaped piece is rotated through first pivot and is connected with the triangular block, and the one end that the L-shaped piece was kept away from to the triangular block rotates through the second pivot and is connected with the take-up pulley, one side of triangular block rotates through the third pivot and is connected with elastic mechanism, and the one end of the third pivot is kept away from through fourth pivot.

As a further aspect of the present invention: adjustment mechanism including transversely inserting the bull stick of establishing in support arm one side, the one end of bull stick extends to in the support arm and the first bevel gear of fixedly connected with, the both ends inner wall of support arm rotates the threaded rod that is connected with vertical setting through two rotation pieces, and the cover is equipped with the second bevel gear who is connected with first bevel gear meshing on the threaded rod, threaded connection has the nut piece on the threaded rod, and one side fixedly connected with carriage release lever of nut piece, the one side that the bull stick was kept away from to the support arm has been seted up smooth mouthful, and the carriage release lever keep away from the one end of nut piece run through smooth mouthful outside extension and with L shape piece fixed connection.

As a further aspect of the present invention: and the stop block is positioned at the outer side of the support arm and is fixedly connected with one end of the rotating rod and adopts a rectangular strip.

As a further aspect of the present invention: the outer side wall of the threaded rod is fixedly connected with the inner wall of the through hole of the second bevel gear in a welding mode.

As a further aspect of the present invention: the elastic mechanism comprises a hydraulic rod and a compression spring, the compression spring is sleeved on the hydraulic rod, one side of the triangular block is rotatably connected with one ends of the hydraulic rod and the compression spring through a third rotating shaft, and one end of the L-shaped block is rotatably connected with one ends of the hydraulic rod and the compression spring through a fourth rotating shaft.

As a further aspect of the present invention: the support arm and the tension wheel are both made of composite stainless steel components, and the outer surfaces of the support arm and the tension wheel are coated with resin paint.

As a further aspect of the present invention: the upside of mounting panel uses the support arm to set up four equidistant mounting holes that encircle the setting as the centre of a circle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through setting up adjustment mechanism, rotate the dog, drive the bull stick and rotate, and then drive first bevel gear and rotate, drive the threaded rod and rotate, because the axial of nut piece is rotated and is followed the carriage release lever and received the restriction of sliding fit, consequently, the displacement is forced to the nut piece, and then drives the take-up pulley displacement, adjusts the power of supporting tight to the belt to the realization is to the effect of belt tensioning, easy operation uses manpower sparingly, and simple structure, low in manufacturing cost, the maintenance of being convenient for.

2. Through setting up elasticity mechanism, when the take-up pulley supports tightly with the belt, the triangle-shaped piece can rotate on L-shaped piece as the centre of a circle by first pivot, and hydraulic stem and compression spring receive the extrusion shrink to produce elasticity this moment to form elastic connection between messenger's take-up pulley and the L-shaped piece, can prevent that the frictional force of take-up pulley pair belt is too big, reduce wearing and tearing, the life of extension this device and belt.

Drawings

FIG. 1 is a schematic perspective view of a belt tensioner for a screw air compressor;

FIG. 2 is a schematic cross-sectional view of a belt tensioner for a screw air compressor at the location of a support arm;

fig. 3 is a schematic front view of a tensioner in a belt tensioner for a screw air compressor.

In the figure: 1. mounting a plate; 2. a support arm; 3. an L-shaped block; 4. a first rotating shaft; 5. a triangular block; 6. a second rotating shaft; 7. a tension wheel; 8. a third rotating shaft; 9. a fourth rotating shaft; 10. a rotating rod; 11. a first bevel gear; 12. a threaded rod; 13. a rotating member; 14. a second bevel gear; 15. a nut block; 16. a travel bar; 17. a sliding port; 18. a stopper; 19. a hydraulic lever; 20. compressing the spring.

Detailed Description

Please refer to fig. 1-3, in an embodiment of the present invention, a belt tensioning device for a screw air compressor, includes a mounting plate 1, a support arm 2 is fixedly connected to an upper side of the mounting plate 1, and the support arm 2 is of a hollow structure, an adjusting mechanism is disposed in the support arm 2, and one end of the adjusting mechanism extends to an outer side of the support arm 2 and is fixedly connected with an L-shaped block 3, one end of the L-shaped block 3 away from the adjusting mechanism is rotatably connected with a triangular block 5 through a first rotating shaft 4, and one end of the triangular block 5 away from the L-shaped block 3 is rotatably connected with a tension pulley 7 through a second rotating shaft 6, the tension pulley 7 is utilized to support the belt tightly, so as to tension the belt, one side of the triangular block 5 is rotatably connected with an elastic mechanism through a third rotating shaft 8, and one end of the L-shaped block;

in fig. 2: the adjusting mechanism comprises a rotating rod 10 transversely inserted on one side of the support arm 2, one end of the rotating rod 10 extends into the support arm 2 and is fixedly connected with a first bevel gear 11, the inner walls of the two ends of the support arm 2 are rotatably connected with a vertically arranged threaded rod 12 through two rotating pieces 13, a second bevel gear 14 meshed with the first bevel gear 11 is sleeved on the threaded rod 12, a nut block 15 is connected on the threaded rod 12 in a threaded manner, a moving rod 16 is fixedly connected on one side of the nut block 15, a sliding opening 17 is formed in one side of the support arm 2 away from the rotating rod 10, one end of the moving rod 16 away from the nut block 15 penetrates through the sliding opening 17 and extends outwards and is fixedly connected with the L-shaped block 3, the rotating rod 10 rotates to drive the first bevel gear 11 to rotate, the first bevel gear 11 is meshed with the second bevel gear 14 to drive the threaded rod 12 to rotate, the threaded rod 12 is connected with the nut block 15 in a threaded manner, and the moving, at the moment, the axial rotation of the nut block 15 is limited by the sliding opening 17 along with the movable rod 16, so that the nut block 15 is forced to displace, the tension pulley 7 is driven to displace, the abutting force on the belt is adjusted, and the effect of tensioning the belt is achieved;

in fig. 2: one end of the rotating rod 10 positioned outside the support arm 2 is fixedly connected with a stop block 18, and the stop block 18 is a rectangular strip, so that the rotating rod 10 can be conveniently rotated;

in fig. 2: the outer side wall of the threaded rod 12 is fixedly connected with the inner wall of the through hole of the second bevel gear 14 in a welding mode, so that the connection is firmer;

in fig. 3: the elastic mechanism comprises a hydraulic rod 19 and a compression spring 20, the compression spring 20 is sleeved on the hydraulic rod 19, one side of the triangular block 5 is rotatably connected with one ends of the hydraulic rod 19 and the compression spring 20 through a third rotating shaft 8, one end of the L-shaped block 3 is rotatably connected with one ends of the hydraulic rod 19 and the compression spring 20 through a fourth rotating shaft 9, the hydraulic rod 19 and the compression spring 20 are extruded and contracted to generate elastic force, so that the tension pulley 7 and the L-shaped block 3 are elastically connected, the tension pulley 7 can be prevented from excessively large friction force on a belt, and abrasion is reduced;

in fig. 1: the supporting arm 2 and the tensioning wheel 7 are both made of composite stainless steel components, and the outer surfaces of the supporting arm 2 and the tensioning wheel 7 are coated with resin coatings, so that the supporting arm and the tensioning wheel are corrosion-resistant and have long service life;

in fig. 1: the upside of mounting panel 1 uses support arm 2 to set up four equidistant mounting holes that encircle the setting as the centre of a circle, is convenient for fix this device in screw air compressor's frame.

The utility model discloses a theory of operation is: when the device is used for tensioning a belt of a screw air compressor, the mounting plate 1 is fixed with a rack of the screw air compressor, the tensioning wheel 7 abuts against the belt, the stop block 18 is rotated to drive the rotating rod 10 to rotate and further drive the first bevel gear 11 to rotate, the first bevel gear 11 is meshed with the second bevel gear 14 and further drive the threaded rod 12 to rotate, the threaded rod 12 is in threaded connection with the nut block 15, the moving rod 16 fixed with the nut block 15 penetrates through the sliding opening 17, and the axial rotation of the nut block 15 is limited by the sliding opening 17 along with the moving rod 16, so that the nut block 15 is forced to displace and further drive the tensioning wheel 7 to displace, the abutting force on the belt is adjusted, the belt tensioning effect is achieved, the operation is simple, the labor is saved, the structure is simple, the manufacturing cost is low, and the maintenance is convenient;

simultaneously, when take-up pulley 7 and belt supported tightly, triangular block 5 can rotate on L-shaped block 3 for the centre of a circle by first pivot 4, and hydraulic stem 19 and compression spring 20 receive extrusion shrink to produce elasticity this moment to form elastic connection between take-up pulley 7 and the L-shaped block 3, can prevent that take-up pulley 7 is too big to the frictional force of belt, reduce wearing and tearing, the life of extension this device and belt.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A belt tensioning device for a screw air compressor comprises a mounting plate (1), it is characterized in that the upper side of the mounting plate (1) is fixedly connected with a support arm (2), the support arm (2) is of a hollow structure, an adjusting mechanism is arranged in the support arm (2), one end of the adjusting mechanism penetrates and extends to the outer side of the support arm (2) and is fixedly connected with an L-shaped block (3), one end of the L-shaped block (3) far away from the adjusting mechanism is rotatably connected with a triangular block (5) through a first rotating shaft (4), and one end of the triangular block (5) far away from the L-shaped block (3) is rotationally connected with a tension wheel (7) through a second rotating shaft (6), one side of the triangular block (5) is rotationally connected with an elastic mechanism through a third rotating shaft (8), and one end of the L-shaped block (3) is rotatably connected with one end of the elastic mechanism far away from the third rotating shaft (8) through a fourth rotating shaft (9).

2. The belt tensioner for screw air compressors according to claim 1, the adjusting mechanism comprises a rotating rod (10) which is transversely inserted at one side of the support arm (2), one end of the rotating rod (10) extends into the support arm (2) and is fixedly connected with a first bevel gear (11), the inner walls of the two ends of the support arm (2) are rotationally connected with a vertically arranged threaded rod (12) through two rotating pieces (13), a second bevel gear (14) meshed with the first bevel gear (11) is sleeved on the threaded rod (12), a nut block (15) is connected on the threaded rod (12) in a threaded manner, and one side of the nut block (15) is fixedly connected with a moving rod (16), one side of the support arm (2) far away from the rotating rod (10) is provided with a sliding opening (17), and one end of the moving rod (16) far away from the nut block (15) penetrates through the sliding opening (17) to extend outwards and is fixedly connected with the L-shaped block (3).

3. The belt tensioning device for screw air compressors according to claim 2, characterized in that a stop (18) is fixedly connected to one end of the rotating rod (10) outside the arm (2), and the stop (18) is a rectangular bar.

4. The belt tensioner for screw air compressors according to claim 2, characterized in that the outer side wall of said threaded rod (12) is fixedly connected with the inner wall of the through hole of said second bevel gear (14) by welding.

5. The belt tensioning device for the screw air compressor as claimed in claim 1, wherein the elastic mechanism comprises a hydraulic rod (19) and a compression spring (20), the compression spring (20) is sleeved on the hydraulic rod (19), one side of the triangular block (5) is rotatably connected with one ends of the hydraulic rod (19) and the compression spring (20) through a third rotating shaft (8), and one end of the L-shaped block (3) is rotatably connected with one ends of the hydraulic rod (19) and the compression spring (20) through a fourth rotating shaft (9).

6. The belt tensioner for screw air compressors according to claim 1, characterized in that said arm (2) and said tension pulley (7) are made of composite stainless steel material, and the outer surfaces of said arm (2) and said tension pulley (7) are coated with resin paint.

7. The belt tensioning device for the screw air compressor as claimed in claim 1, wherein the upper side of the mounting plate (1) is provided with four mounting holes which are arranged around the support arm (2) at equal intervals.